//buffersource.cpp

// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

//

#include "buffersource.h"

#include "minputport.h"

// ---------------------------------------------------------------------------

// Constructor

// ---------------------------------------------------------------------------

//

CBufferSource::CBufferSource()

	: CActive(EPriorityStandard)

	{

	TRACE_CREATE();

	DP_CONTEXT(CBufferSource::CBufferSource *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	DP_OUT();

	}

// ---------------------------------------------------------------------------

// Factory method

// ---------------------------------------------------------------------------

//

EXPORT_C CBufferSource* CBufferSource::NewL()

	{

	DP_STATIC_CONTEXT(CBufferSource::NewL *CD0*, CtxDevSound, DPLOCAL);

	DP_IN();

	CBufferSource* self = new(ELeave)CBufferSource();

	CleanupStack::PushL(self);

	self->ConstructL();

	CleanupStack::Pop(self);

	DP0_RET(self, "0x%x");

	}

// ---------------------------------------------------------------------------

// Second phase constructor

// ---------------------------------------------------------------------------

//

void CBufferSource::ConstructL()

	{

	DP_CONTEXT(CBufferSource::ConstructL *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	CActiveScheduler::Add(this);

	DP_OUT();

	}

// ---------------------------------------------------------------------------

// Destructor

// ---------------------------------------------------------------------------

//

CBufferSource::~CBufferSource()

	{

	DP_CONTEXT(CBufferSource::~CBufferSource *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	DP_OUT();

	}

// from MMMFBufferSource

// ---------------------------------------------------------------------------

// CBufferSource::SetDataSupplier

// ---------------------------------------------------------------------------

TInt CBufferSource::SetDataSupplier(MMMFAudioDataSupplier& aSupplier)

	{

	DP_CONTEXT(CBufferSource::SetDataSupplier *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	iSupplier = &aSupplier;

	DP0_RET(KErrNone, "%d");

	}

// ---------------------------------------------------------------------------

// CBufferSource::BufferFilled

// ---------------------------------------------------------------------------

TInt CBufferSource::BufferFilled(CMMFBuffer* aBuffer)

	{

	DP_CONTEXT(CBufferSource::BufferFilled *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	iBuffer = aBuffer;

	DP_OUT();

	return iInput->BufferFilled(aBuffer);

	}

// ---------------------------------------------------------------------------

// CBufferSource::BuffersDiscarded

// ---------------------------------------------------------------------------

TInt CBufferSource::BuffersDiscarded()

	{

	DP_CONTEXT(CBufferSource::BuffersDiscarded *CD1*, CtxDevSound, DPLOCAL);

	// Check what we are suppose to do

	DP_IN();

	if(iBuffer)

		{

		iBuffer = NULL;

		}

	DP0_RET(KErrNone, "%d");

	}

//From MOutputPort	

// ---------------------------------------------------------------------------

// CBufferSource::FillBuffer

// ---------------------------------------------------------------------------

//

TInt CBufferSource::FillBuffer(CMMFBuffer* aBuffer, MInputPort* aConsumer)

	{

	DP_CONTEXT(CBufferSource::FillBuffer *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	TInt err = KErrNone;

	if (aConsumer == iInput)

		{

		iSupplier->BufferToBeFilled(static_cast<MMMFBufferSource*>(this), aBuffer);

		}

	else

		{

		err = KErrNotSupported;

		}

	DP0_RET(err, "%d");

	}

// ---------------------------------------------------------------------------

// CBufferSource::BufferEmptied

// ---------------------------------------------------------------------------

//

TInt CBufferSource::BufferEmptied(CMMFBuffer* /*aBuffer*/)

	{

	DP_CONTEXT(CBufferSource::BufferEmptied *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	DP0_RET(KErrNone, "%d");

	}

// ---------------------------------------------------------------------------

// CBufferSource::SetInput

// ---------------------------------------------------------------------------

//

TInt CBufferSource::SetInput(MInputPort* aInput)

	{

	DP_CONTEXT(CBufferSource::SetInput *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	iInput = aInput;

	DP0_RET(KErrNone, "%d");

	}

// ---------------------------------------------------------------------------

// CBufferSource::RemoveInput

// ---------------------------------------------------------------------------

//

TInt CBufferSource::RemoveInput(MInputPort* /*aInput*/)

	{

	DP_CONTEXT(CBufferSource::RemoveInput *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	iInput = NULL;

	DP0_RET(KErrNone, "%d");

	}

// ---------------------------------------------------------------------------

// CBufferSource::GetOutputPort

// ---------------------------------------------------------------------------

//

TInt CBufferSource::GetOutputPort(MOutputPort*& aOutputPort)

	{

	DP_CONTEXT(CBufferSource::GetOutputPort *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	aOutputPort = this;

	DP0_RET(KErrNone, "%d");

	}

// ---------------------------------------------------------------------------

// CBufferSource::FlushBuffer

// ---------------------------------------------------------------------------

//

TInt CBufferSource::FlushBuffer(MFlushHandlerObserver* aFlushObserver)

	{

	DP_CONTEXT(CBufferSource::FlushBuffer *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	iObserver = aFlushObserver;

	if (!IsActive())

		{

		TRequestStatus* status = &iStatus;

		User::RequestComplete(status, KErrNone);

		SetActive();

		}

	DP0_RET(KErrNone, "%d");

	}

// From CActive

// ---------------------------------------------------------------------------

// CBufferSource::DoCancel

// ---------------------------------------------------------------------------

//

void CBufferSource::DoCancel()

	{

	DP_CONTEXT(CBufferSource::FlushBuffer *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	// Nothing to do

	DP_OUT();

	}

// ---------------------------------------------------------------------------

// CBufferSource::RunL

// ---------------------------------------------------------------------------

//

void CBufferSource::RunL()

	{

	DP_CONTEXT(CBufferSource::RunL *CD1*, CtxDevSound, DPLOCAL);

	DP_IN();

	iSupplier->DiscardBuffers(this);

	iObserver->FlushComplete(KErrNone);

	DP_OUT();

	}

// end of file